Hi All
I am about to order my Prop from Vans but i cant work out the bolt size for the crank flange.The bolts are marked A988 3 and the threaded section is largertan the plain shank,threaded section is .431" the plain shank is.405" but the ID at the crank boss apears to be about .375".
The engine is a IO-320B1A
Do i order the prop for 3/8 or 7/16 ?
Thanks for any help
I am about to order my Prop from Vans but i cant work out the bolt size for the crank flange.The bolts are marked A988 3 and the threaded section is largertan the plain shank,threaded section is .431" the plain shank is.405" but the ID at the crank boss apears to be about .375".
The engine is a IO-320B1A
Do i order the prop for 3/8 or 7/16 ?
Thanks for any help
